Arctic cisco (Coregonus autumnalis) is an anadromous species of freshwater whitefish that inhabits the Arctic parts of Siberia, Alaska and Canada. It also has a close freshwater relative in several lakes of Ireland, known as the pollan, alternatively regarded as conspecific with it, or as a distinct species.

The freshwater omul of Lake Baikal, formerly considered a subspecies Coregonus autumnalis migratorius of the Arctic cisco, has no close genetic relationship to it, and is now classified as a separate species Coregonus migratorius.

Fred Astaire (born Frederick Austerlitz; May 10, 1899 – June 22, 1987) was an American film and Broadway stage dancer, choreographer, singer and actor. His stage and subsequent film career spanned a total of 76 years, during which he made 31 musical films. He was named the fifth Greatest Male Star of All Time by the American Film Institute. He is particularly associated with Ginger Rogers, with whom he made ten films.

Gene Kelly, another major innovator in filmed dance, said that "the history of dance on film begins with Astaire". Beyond film and television, many classical dancers and choreographers, Rudolf Nureyev, Sammy Davis, Jr., Michael Jackson, Gregory Hines, Mikhail Baryshnikov, George Balanchine and Jerome Robbins among them, also acknowledged his importance and influence.

Astaire was born in Omaha, Nebraska, the son of Johanna "Ann" (née Geilus) and Frederic "Fritz" Austerlitz (born September 8, 1868, as Friedrich Emanuel Austerlitz). Astaire's mother was born in the United States to Lutheran German immigrants from East Prussia and Alsace, while Astaire's father was born in Linz, Austria, to Jewish parents who had converted to Catholicism.